diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-02-11 10:27:30 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-02-15 16:10:19 +0000 |
| commit | ee504898777b7d14a6058fc1f1a93d02d974de87 (patch) | |
| tree | beeeaf0a937293074cdea6dfbcbeebdd29def81d /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 12c83d99436b6a4dcd2d2afe7b086509a1391cc5 (diff) | |
drm/i915: Fix struct mutex vs. RPS lock inversion
RPS lock must be taken before the struct_mutex to avoid
locking inversion. So stop grabbing it for the whole
powersave initialization and instead only take it during
the sections which need it.
Also, struct_mutex is not needed any more since dedicated
RPS lock was added in:
commit 4fc688ce79772496503d22263d61b071a8fb596e
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri Nov 2 11:14:01 2012 -0700
drm/i915: protect RPS/RC6 related accesses (including PCU) with a new mutex
Based on prototype patch by Chris Wilson and a subsequent
mailing list discussion involving Ville, Imre, Chris and
Daniel.
v2: More details in the commit.
v3: Use drm_gem_object_unreference_unlocked. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions